com.googlecode.javaewah.symmetric
Class EWAHPointer

java.lang.Object
  com.googlecode.javaewah.symmetric.EWAHPointer

All Implemented Interfaces:

Comparable<EWAHPointer>

public final class EWAHPointer
extends Object
implements Comparable<EWAHPointer>

Wrapper around an IteratingBufferedRunningLengthWord used by the RunningBitmapMerge class.

Since:

0.8.0

Author:

Daniel Lemire

Field Summary

IteratingBufferedRunningLengthWord

iterator Underlying iterator

Constructor Summary

EWAHPointer(int previousendrun, IteratingBufferedRunningLengthWord rw, int pos)
Construct a pointer over an IteratingBufferedRunningLengthWord.

Method Summary

int	beginOfRun()
void	callbackUpdate(UpdateableBitmapFunction f)
int	compareTo(EWAHPointer other)
int	endOfRun()
boolean	hasNoData()
void	parseNextRun() Process the next run

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

iterator

public IteratingBufferedRunningLengthWord iterator

Underlying iterator

Constructor Detail

EWAHPointer

public EWAHPointer(int previousendrun,
                   IteratingBufferedRunningLengthWord rw,
                   int pos)

Construct a pointer over an IteratingBufferedRunningLengthWord.

Parameters:

previousendrun - word where the previous run ended

rw - the iterator

pos - current position (in word)

Method Detail

endOfRun

public int endOfRun()

Returns:

the end of the current run

beginOfRun

public int beginOfRun()

Returns:

the beginning of the current run

parseNextRun

public void parseNextRun()

Process the next run

hasNoData

public boolean hasNoData()

Returns:

true if there is no more data

callbackUpdate

public void callbackUpdate(UpdateableBitmapFunction f)

Parameters:

f - call the function with the current information

compareTo

public int compareTo(EWAHPointer other)

Specified by:

compareTo in interface Comparable<EWAHPointer>